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Freelance Mainframe Applications Developer Jobs in Denton, TX

Kyndryl

COBOL Mainframe Application Developer

Dallas, TX · On-site

$48.50 - $62.25/hr

We are looking for a very experienced COBOL Mainframe Developer with Application Architecture ... Analyze interdependence between mainframe applications * Analyze, design, develop, test and deploy ...

Proximate Technologies Inc.

Mainframe Developer

Plano, TX · On-site

$45.75 - $58.75/hr

Writing and maintaining CICS transaction programs to provide online access to mainframe applications. * Must understand Agile methodologies and DevOps for mainframe. Qualifications * Bachelor ...

Proximate Technologies Inc.

Mainframe Developer

Plano, TX · On-site

$45.75 - $58.75/hr

Writing and maintaining CICS transaction programs to provide online access to mainframe applications. * Must understand Agile methodologies and DevOps for mainframe. Qualifications * Bachelor ...

Proximate Technologies Inc.

Mainframe Developer

Plano, TX · On-site

$45.75 - $58.75/hr

Writing and maintaining CICS transaction programs to provide online access to mainframe applications. * Must understand Agile methodologies and DevOps for mainframe. Qualifications * Bachelor ...

Randstad Digital

Mainframe Developer

Plano, TX · On-site

$58 - $61/hr

Developer to support software upgrade projects on mainframe applications * Supporting analysis, design, development, testing and documentation with minimal oversight. 3-5 year experience with the ...

Accenture

Mainframe Specialist

Arlington, TX

$70K - $196K/yr

Lead the design, development, and modernization of mainframe applications, enforcing best practices ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Accenture

Mainframe Specialist

Dallas, TX · On-site

$70K - $196K/yr

Lead the design, development, and modernization of mainframe applications, enforcing best practices ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Eliassen Group

Mainframe Engineer

Westlake, TX · On-site

$55 - $60/hr

Onsite in Westlake, TX Our client seeks a Mainframe Engineer to develop and maintain high-volume ... Develop, maintain, and enhance mainframe applications across batch and online environments.

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How much do freelance mainframe applications developer jobs pay per hour?

As of Aug 30, 2026, the average hourly pay for freelance mainframe applications developer in Denton, TX is $45.89, according to ZipRecruiter salary data. Most workers in this role earn between $40.82 and $53.41 per hour, depending on experience, location, and employer.

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Freelance Mainframe Applications Developer jobs near you
Infographic showing various Freelance Mainframe Applications Developer job openings in Denton, TX as of August 2026, with employment types broken down into 44% Full Time, 4% Part Time, 4% Temporary, and 48% Contract. Highlights an 80% In-person, and 20% Remote job distribution, with an average salary of $95,448 per year, or $45.9 per hour.

Mainframe Programmer Full Time

Smart IT Frame LLC

Plano, TX • On-site

Other

Posted 10 days ago

Job description

Job Title: Mainframe Production Support SME

Location: Plano, TX

Job Description:

This job is responsible for supporting critical Mainframe applications to accomplish business goals

Key responsibilities of the job include ensuring that applications are functioning as designed address batch or customer issues and find improvement opportunities

Analyze production issues restore batch abends and create adhoc data reports as requested by Line of Business

Job expectations include a strong knowledge of Mainframe batch applications programming languages such as COBOL JCL Easy trieve and commonly used Mainframe tools

Serve as hands on Subject Matter Expert and support issues resolution Priority 1, 2, 3

Assess and suggest process improvements enhancements and performance improvements

Maintain documentation of the issues and knowledge of business processes

Application Release and Deployment Support

Production TicketIssue Triage support

Identify root cause in the code perform breakfix activities in the code andor DB

Create adhoc data reports as needed by Line of Business

Provide support after office hours weekends and oncall support when business needs

Required Qualifications

10 years of developing supporting Mainframe based applications

10 Years of developing batch using Job Control Language JCL

10 Years of analyzing developing COBOL Easytrieve programs

10 Years of experience working with Flat files VSAM DB2 and IMS DBDC

5 Years of experience with tools such as CA7 NDMFTP File Manager

Desired Qualifications

Good communication skills both written and oral are required as the individual must interface with application developers support teams and management

Experience with Consumer banking or Deposits applications

Skills

Mandatory Skills : Mainframe - IMSDB, Mainframe DB2, Mainframe Enterprise Cobol, Mainframe Platform, ServiceNow ITSM

Good to Have Skills : Critical Incident Response, Major incident management

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